database schema for an online merch store

Designing a database schema for an online merchandise store involves identifying the key entities and their relationships. Below is a simplified example of a database schema for an online merch store:

Entities:

1. User:
   • UserID (Primary Key)
   • Username
   • Password
   • Email
   • FirstName
   • LastName
   • Address
   • PhoneNumber
2. Product:
   • ProductID (Primary Key)
   • Name
   • Description
   • Price
   • StockQuantity
   • CategoryID (Foreign Key referencing Category table)
3. Category:
   • CategoryID (Primary Key)
   • CategoryName
4. Order:
   • OrderID (Primary Key)
   • UserID (Foreign Key referencing User table)
   • OrderDate
   • TotalAmount
5. OrderItem:
   • OrderItemID (Primary Key)
   • OrderID (Foreign Key referencing Order table)
   • ProductID (Foreign Key referencing Product table)
   • Quantity
   • Subtotal

Now, let’s establish the relationships between these entities:

• One-to-Many relationship between User and Order (One user can have multiple orders).
• One-to-Many relationship between Order and OrderItem (One order can have multiple order items).
• Many-to-One relationship between Product and OrderItem (One product can be part of multiple order items).
• Many-to-One relationship between Category and Product (One category can have multiple products).

Here’s a textual representation of the relationships:

• User (1) —–< Order (Many)
• Order (1) —–< OrderItem (Many)
• Product (Many) >—– OrderItem (Many)
• Category (1) —–< Product (Many)

This schema allows you to track users, products, categories, orders, and order items in a structured manner. You can expand and customize it based on your specific requirements, adding features like reviews, ratings, or additional user details as needed. Additionally, consider incorporating normalization techniques to avoid data redundancy and maintain data integrity